Use std::vector instead of a hard-coded array. The length of that array could

get *very* large, but we only need it to be the size of thenumber of pregs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108411 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/CodeGen/CriticalAntiDepBreaker.h b/lib/CodeGen/CriticalAntiDepBreaker.h
index 540630083b..62ef72ace1 100644
--- a/lib/CodeGen/CriticalAntiDepBreaker.h
+++ b/lib/CodeGen/CriticalAntiDepBreaker.h
@@ -25,6 +25,7 @@
 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/SmallSet.h"
 #include <map>
+#include <vector>
 
 namespace llvm {
 class TargetInstrInfo;
@@ -46,19 +47,18 @@ class TargetRegisterInfo;
     /// corresponding value is null. If the register is live but used in
     /// multiple register classes, the corresponding value is -1 casted to a
     /// pointer.
-    const TargetRegisterClass *
-      Classes[TargetRegisterInfo::FirstVirtualRegister];
+    std::vector<const TargetRegisterClass *> Classes;
 
     /// RegRegs - Map registers to all their references within a live range.
     std::multimap<unsigned, MachineOperand *> RegRefs;
 
     /// KillIndices - The index of the most recent kill (proceding bottom-up),
     /// or ~0u if the register is not live.
-    unsigned KillIndices[TargetRegisterInfo::FirstVirtualRegister];
+    std::vector<unsigned> KillIndices;
 
     /// DefIndices - The index of the most recent complete def (proceding bottom
     /// up), or ~0u if the register is live.
-    unsigned DefIndices[TargetRegisterInfo::FirstVirtualRegister];
+    std::vector<unsigned> DefIndices;
 
     /// KeepRegs - A set of registers which are live and cannot be changed to
     /// break anti-dependencies.